I live in Tucson AZ, where the humidity is always low all year around. Its
imperative that cotton clothes be worn, and when they are being washed,
that anti-static dryer
sheets are used to reduce routine static.

In houses here, all carpeting contains conductive fibers interwoven into
the pattern to stop static. A good alternative is to spray the carpet
around your working area with liquid "Cling-Free" or similar chemicals.
Unfortunately, the treatment has to be repeated almost daily to keep
working, as it dries quickly here.

--Bob

At 09:23 PM 12/15/2003, you wrote:
>I think I'm considered lucky staying in Asia when comes to static-charge.
>The high humidity (> 95%) somehow, helps to lower the body static charge
>tremendously. As such, I do not have the habit to discharge static-charge
>before handling MCUs. The only time I noticed I have high static-charge is
>when I iron my pants that is made of synthetic cloth (ie. non-cotton). I
>can even hear faint clicking sound when I move my pants around the ironing
>board.
>
>As my PC is just next to my work bench, I normally touch the metal casing
>(which is connected to ground), if I want to discharge static-charge from
>my body.
>
>Peter Donahue <Peter.Donahue@COMDEV.CA> wrote:
>I've fried a half dozen 12F675s while removing them from the programmer.
>Each time there was a static discharge from a small piece of exposed metal at
>the front (side with no pins) of the chip. I never had this problem with
>other chips.
>Pete
>
>"Peter L. Peres" wrote:
>
> > >Exactly the same thing happened to me. I narrowed it down to me not
> > >earthing myself before I picked up the PIC. I don't know if was the real
> > >reason, but I could reliably kill a PIC by walking across the carpet,
> > >picking the PIC up and pushing it into its DIL socket.
> >
> > My only static-killed pic died when I grabbed it out of the eraser by
> > touching pin 4 first (while not touching the table first). Instant zap
> > 12C590JW. But it did not short the power supply.
> >
> > Peter
> >
> > --
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>
>--
>____________________________________________
>Peter Donahue
>AMTS (Code Monkey)
>COM DEV R&D
>P (519) 622-2300 x2439
>F (519) 622-8706
>
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--------------
Bob Axtell
PIC Hardware & Firmware Dev
Tucson, AZ
1-520-219-2363
"I lose some on each sale but make it up in volume."

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